// let arr = [];
// console.log(Boolean(arr));
// let a = 0.1,b = 0.2,c = a + b;
// console.log(a);
// console.log(b);
// console.log(c);
// console.log("c = a + b | c == 0.3:" + (c == 0.3))

console.log(parseInt("100.0")) // 100
console.log(+null) // 0
console.log(+undefined) // NaN
console.log(+true) // 1
console.log(+false) // 0
console.log(+"0xFF") // 255
console.log(+"le-4") // NaN
console.log(+{}) // NaN